Hoshizaki Ice Machine AM-50BAE: Operation, Maintenance, and Troubleshooting Guide
Page 9

AM-50BAE Series Sequence Flow Chart

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cycle Steps

 

 

 

1. Initial

 

 

2. Initial Freeze Cycle

 

 

 

 

 

 

 

 

3. Normal Harvest Cycle

 

4. Normal Freeze Cycle

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Harvest

 

 

 

 

• WV continues for 52 sec. during initial freeze.

 

 

 

• WV time: 102 sec. or the

 

 

 

 

• 3-min. FT resets if temperature rises above

 

 

 

 

 

 

 

 

 

Cycle

 

 

 

 

• 3-min. FT resets if temperature rises above

 

 

 

 

length of harvest, whichever

 

 

 

27°F (-3°C) during 3-min. FT.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

27°F (-3°C) during 3-min. FT.

 

 

 

 

 

 

is shorter.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

50-sec.

 

 

 

 

 

 

Thermistor

 

 

 

 

3-min. FT

 

 

 

 

 

5-min. FTT

 

 

 

 

 

Thermistor

 

 

50-sec.

 

 

 

 

 

Thermistor

 

 

 

 

 

3-min. FT

 

 

 

 

5-min. FTT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HT

 

 

 

 

in control

 

 

 in control

 

 

 in control

 

 

 

 

in control

 

 

 

 

HT in

 

 

 

 

 

in control

 

 in control

 

 

 

 

 in control

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

102-sec.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

102-sec.

 

 

control

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

52-sec.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WVT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WVT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Startup

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WV de-energized

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Thermistor drops to

If thermistor stays

 

 

 

 

Thermistor temperature

 

 

 

 

 

Thermistor drops to

If thermistor stays

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

27°F (-3°C)

 

below 27°F (-3°C),

 

 

 

 

reaches 45°F (7°C)

 

 

 

 

 

27°F (-3°C)

 

below 27°F (-3°C),

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(6.8 kΩ or more).

3-min. freeze timer

 

 

 

 

(4.5 kΩ or less).

 

 

 

 

 

 

(6.8 kΩ or more).

3-min. freeze timer

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3-min. FT starts.

terminates and

 

 

 

 

50 sec. HT starts.

 

 

 

 

 

3-min. FT starts.

 

terminates and

 

 

9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5-min FTT starts.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5-min FTT starts.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Otherwise, 3-min. FT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Otherwise, 3-min. FT

 

 

BCH energized

BCH continues

 

restarts.

 

 

BCH continues

 

 

BCH continues

 

restarts.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Comp energized

Comp continues

 

 

 

 

 

 

 

 

Comp continues

 

 

Comp continues

 

 

 

 

 

 

 

 

 

 

HGV energized

FM energized

 

 

 

 

 

 

 

 

FM de-energized

 

 

FM energized

 

 

 

 

 

 

 

 

 

 

WV energized

PM energized

 

 

 

 

 

 

 

 

PM de-energized

 

 

PM energized

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HGV de-energized

 

 

 

 

 

 

 

 

HGV energized

 

 

HGV de-energized

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WV energized

 

 

WV de-energized

 

 

 

 

 

 

 

 

 

 

A. Sequence of Operation Flow Chart

II. Sequence of Operation and Service

 

Diagnosis

Shutdown and Restart

 

 

 

 

1. Bin Full

 

2. Icemaker Off

 

3. Ice Level Lowered

 

 

 

 

 

Within 10 sec. after ice

 

All components

 

No ice touching

 

 

 

 

 

contacts thermostatic

 

de-energized.

 

thermostatic bulb.

 

 

 

 

 

bulb, appliance shuts

 

 

 

Icemaker starts at

 

 

 

 

 

down.

 

 

 

"1. Initial Harvest Cycle."

BC Operation

 

 

 

 

 

 

 

 

To 1 above

 

 

Ice contacts

BC open

BC closed

 

 

thermostatic bulb

All components

 

 

 

de‑energized except BCH and DP

Components Energized when the Control Switch is in the "WASH" Position

The "WASH" position on the control switch is used when cleaning and sanitizing the icemaker. When in the "WASH" position, power is supplied to the pump motor and fan motor. The cleaner and sanitizer flow over the evaporator plate assembly.

Legend:

BC–bin control

BCH–bin control heater Comp–compressor DP–drain pump (optional) FM–fan motor FT–freeze timer FTT–freeze termination timer HGV–hot gas valve HT–harvest timer PM–pump motor WV–inlet water valve WVT–inlet water valve timer

Page 8 Page 10
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Page 8 Page 10
Contents AM-50BAE AM-50BAE-DS AM-50BAE-AD AM-50BAE-ADDS Hoshizaki AMERICA, INC Contents Important Safety Information Page Page Construction Water/Refrigeration Circuit Diagram Cycle DiagnosisService Diagnosis Diagnostic Procedure Auxiliary Code C-0 and Earlier Page Page Diagnostic Procedure Auxiliary Code C-1 and Later Page Page Bin Control Check Thermistor Check Diagnostic Tables No Ice ProductionNo Ice Production Possible Cause Freeze-Up Freeze-Up Possible Cause Harvest CycleFreeze Cycle Low Ice Production Low Ice Production Possible Cause Long Harvest CycleLong Freeze Cycle III. Control Board Auxiliary Code C-0 and Earlier Control Board LayoutAuxiliary Code C-1 and Later Settings and Adjustments VR1 Harvest ControlVR2 Freeze Control LED Lights Auxiliary Code C-1 and Later Control SwitchLED 1 24VAC LED 2 FreezeIV. Refrigeration Circuit and Component Service Information Refrigeration Circuit Service InformationRefrigerant Recovery Evacuation and Recharge R-134a BrazingComponent Component Service InformationMaintenance Schedule MaintenanceMaintenance Schedule Frequency Area TaskPriming Instructions Optional Drain Pump HS-0248 or HS-5061Discharge Hose VI. Preparing the Icemaker for Periods of Non-Use VII. Disposal 238 227145 200Wiring Diagrams Auxiliary Code C-1 and Later HS-0248 and HS-5061 Optional Drain Pump
Related manuals
Manual 13 pages 25.6 Kb Manual 34 pages 44.48 Kb Manual 31 pages 60.32 Kb

AM-50BAE-DS, AM-50BAE-ADDS, AM-50BAE, AM-50BAE-AD specifications

The Hoshizaki AM-50BAE ice maker stands out in the market for its efficiency and reliability, making it a popular choice among businesses seeking to provide high-quality ice for various applications. This compact and aesthetically pleasing machine is designed for ease of use, combining innovative technology with solid construction.

One of the key features of the Hoshizaki AM-50BAE is its ability to produce up to 55 pounds of crescent-shaped ice daily. This type of ice is not only visually appealing but also perfect for beverages, ensuring efficient cooling and presentation. With an ice storage capacity of about 22 pounds, this machine is well-suited for small to medium-sized establishments, including cafes, bars, and restaurants, where space is often at a premium.

The AM-50BAE employs Hoshizaki’s unique Smart Design, which includes a vertical evaporator that allows for improved ice production and longevity. This innovative evaporator design minimizes ice build-up, thereby reducing maintenance needs. In addition, the unit's durable stainless steel exterior ensures it can withstand the rigors of a busy commercial environment while maintaining a sleek and professional appearance.

Moreover, the Hoshizaki AM-50BAE features an advanced ice-making process that utilizes a cycle method, which optimizes efficiency and ensures consistent ice quality. It incorporates a robust water filtration system that enhances the purity of the ice produced, addressing the growing demand for clean and safe ice in the food service industry.

Another notable characteristic of the AM-50BAE is its energy efficiency. It is designed to be environmentally friendly, utilizing R-404A refrigerant and consuming minimal electricity, thus helping businesses save on operational costs while also reducing their carbon footprint.

With user-friendly controls, the Hoshizaki AM-50BAE is simple to operate and maintain. Regular cleaning and maintenance tasks are straightforward, allowing businesses to focus on serving their customers rather than dealing with complex machinery issues.

In summary, the Hoshizaki AM-50BAE ice maker is a reliable, efficient, and aesthetically pleasing solution for any establishment that requires a steady supply of high-quality ice. Its innovative features, advanced technology, and commitment to energy efficiency make it an excellent investment for food service professionals looking to enhance their beverage offerings.
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